trail behind
collocation落在后面；尾随
The dog trailed behind its owner on the walk.
散步时，狗跟在主人后面。
跟踪；尾随
trailed — past of trail
先理解核心含义，再看它在真实句子里的用法。
跟踪；尾随
to follow behind someone or something
The little dog always trails its owner around the house.
那只小狗总在屋里跟着主人走来走去。
跟随在后；尾随
To follow behind (someone or something); to tail (someone or something).
在地上拖拉(某物)
To drag (something) behind on the ground.
留下(踪迹)
To leave (a trail of).
展示(电影、电视节目等)的预告片；提前发布或公布(报告等)的预览
To show a trailer of (a film, TV show etc.); to release or publish a preview of (a report etc.) in advance of the full publication.
trail
Base
原形
trails
3rd person
第三人称单数
trailing
-ing
现在分词
trailed
Past
过去式
trailed
Past participle
过去分词
She trails behind the group.
她落后于队伍。
He trailed the suspect through the streets.
他跟踪嫌疑人穿过了街道。
They have trailed the deer for hours.
他们已经追踪那头鹿好几个小时了。
规则动词
We trailed the tour guide through the narrow streets of the old town.
我们跟着导游穿过老城狭窄的街道。
The children were trailing behind their parents, stopping to look at every shop window.
孩子们跟在父母后面，不时停下来看看每一家商店的橱窗。
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落在后面；尾随
The dog trailed behind its owner on the walk.
散步时，狗跟在主人后面。
（声音）逐渐变弱；渐渐消失
His voice trailed off as he realized his mistake.
当他意识到自己的错误时，声音逐渐变小。
用手指轻轻掠过（水面等）
She trailed her fingers in the cool stream.
她用手指轻轻划过清凉的小溪。
（比赛中）落后（多少分等）
At halftime, the home team trailed by two goals.
半场时，主队落后两球。
在民调中落后
The challenger is still trailing in the polls despite his recent surge.
尽管近期势头上升，挑战者在民调中仍然落后。
跟踪嫌疑人
Officers trailed the suspect for three blocks before making an arrest.
警察跟踪嫌疑人走了三个街区后实施逮捕。
（声音、话语等）逐渐变小直至停止
His voice trailed off as he lost confidence.
随着信心的丧失，他的声音逐渐变小，最后停了下来。
开拓道路，做先驱
The company blazed a trail in online shopping.
这家公司开创了网上购物的先河。
出发，上路
We hit the trail before sunrise to avoid the heat.
为了避开炎热，我们在日出前就上路了。
发长 /eɪ/ 音 (如 rain, wait)
Use trailed naturally, then get feedback on meaning, tone, grammar, and phrasing.
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想象雪地上走过，身后拖出一条长痕——trail 既指‘拖’出的痕迹，也指‘尾随’在后。
语域：neutral 常见场景：police surveillance、everyday narrative 在“跟随；尾随”这个义项下，trail 没有明显的书面或口语偏向，日常对话和叙述中都可以用。比较常见于警察跟踪、人或动物跟在后面等场景，语气中性。相比 follow，trail 往往带有持续跟随或落在后面的意味，但语域上并不正式。
与 trail 押韵（/eɪl/）的有 sail、tail、nail、pale（注意 pale 拼作 -ale 但发音相同）。拼写相似的 trial /ˈtraɪəl/ 和 trawl /trɔːl/ 发音不同，容易混淆，请勿按 trail 的读音类推。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.